DB sampling test booklet_Layout 1 17/02/2010 15:40 Page 12
5 Keeping warm and healthy
(a) Look at the picture showing the
inside of the human body.
(i) Put a cross, X, on the organ in
the picture that pumps blood
around the body.
(ii) Name the organ that pumps blood around the body.
..................................................... (1 mark)
(b) Hassan knows that some activities can affect our pulse rates.
Tick TWO boxes below to show the two activities that would
increase pulse rate the most.
having a rest eating fruit
writing a letter playing football
going for a walk drinking water
(1 mark)
(c) Tick ONE box to show the usual units of measurement for
pulse rate.
beats beats per second
beats per minute beats per hour
(1 mark)
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DB sampling test booklet_Layout 1 17/02/2010 15:40 Page 13
(d) Hassan is interested in how temperature affects pulse rate.
He measures the pulse rates of 6 children sitting in the playground
on a cold day.
He then measures the pulse rates of the same 6 children after they
have sat in a warm classroom for 10 minutes.
Hassan records his results
in the table below.
Children
A B C D E F
Pulse rate in cold
72 68 76 75 67 70
playground (units)
Pulse rate in warm
80 75 82 80 70 75
classroom (units)
Describe ONE thing Hassan did in his investigation so he could
be sure of his conclusion.
.................................................................................................................
................................................................................................................. (1 mark)
(e) Use the table to write a conclusion for Hassan’s investigation.
.................................................................................................................
................................................................................................................. (1 mark)
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